Concentrate cartridge



FIG. 1 is a perspective view of the present invention.

FIG. 2 is a side elevational view.

FIG. 3 is a top planar view.

FIG. 4 is a bottom planar view.

FIG. 5 is a center vertical cross sectional elevational view of the concentrate cartridge as indicated in FIG. 3; and,

FIG. 6 is a center vertical cross-sectional view of the concentrate cartridge as indicated in FIG. 3. 

The ornamental design for a concentrate cartridge, as shown and described. 